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May you wield the mop and bucket with equanimity...
I just wanted to say that becoming a sysop is *not a big deal*.
I think perhaps I'll go through semi-willy-nilly and make a bunch of people who have been around for a while sysops. I want to dispel the aura of "authority" around the position. It's merely a technical matter that the powers given to sysops are not given out to everyone.
I don't like that there's the apparent feeling here that being granted sysop status is a really special thing.
Set a strong passwordnow. Your account now has the potential to cause site-wide damage with a single edit. If this happens, you will be held responsible. Permitting your account to be compromised, by neglect or otherwise, can lead to blocking and loss of adminship. Better safe than sorry.
How to act
Remember that administrator status is not a trophy. Generally, therefore, do not act any differently now than you did six months or a year ago. It is true that you may be able to help mediate a dispute effectively, or resolve one, or guide the improvement of an article. But in virtually all of these cases your ability has nothing to do with your being an administrator, just with your experience, knowledge of the policies, and good sense—i.e. virtues you had long before you became an administrator, and virtues shared by many non-administrators. It is the possession of these virtues that is important and merits respect, and they have nothing to do with being an administrator as such. In other words, someone who isn't an administrator but who is experienced, knows the policies, and has good judgment is just as (and sometimes more) likely to improve a situation as an admin can. Respect other people's good judgment, and expect them to respect your good judgment—but do not expect any special treatment just because you are an admin.
Although administrators do have certain powers, you need good judgment to use them. Nevertheless, this does not mean that administrators should act like police or judges. Consider thinking of your new status more like a custodian. Custodians typically have the keys to every room in the building—because it's their job to clean out the garbage and make sure the place is presentable when people come to work. Because the custodians have keys for the building, they could lock the workers out of the building, or empty the furniture out of somebody's office for the fun of it... but, as a rule, they should not. And if there are times when custodians may be called upon to empty someone's office, it isn't something they do for the fun of it, or do just because they can. Similarly, administrators' powers enable us to help out with countless maintenance jobs (e.g. our version of cleaning up graffiti). It is true that among these are powers to block users or protect pages, but we should strive never to use these powers based on our own judgment . Instead, as a general rule, administrators should use their powers only when Wikipedia policy makes it an unquestionable and thus practically automatic act, or when there is such a strong consensus that an admin's act is simply executing what is clearly the will of the community (if you ever have doubts, report the matter at the administrator's noticeboard, or ask on the admin's IRC channel—don't hesitate to draw on the advice or help of more experienced admins.) Be cautious and diplomatic, but be ready to use your tools if necessary.
Avoid acting in a situation you're involved in. If you find you're being harassed, it's best to contact an uninvolved editor to handle it for you if it worsens.
Our dictum, "ignore all rules" feels good the first time you use it, and we should never blame newbies for over-indulging. But even philosophers drunk on wisdom need designated drivers (or people to clean up the mess they leave behind). Appreciate its value, but be sure you appreciate the importance of our other policies. Policy is often smarter than you think.
Almost all conflicts can be resolved by:
Patience and talking (instructing users and willing to let things play out over a few days or weeks). If you see a revert war brewing, warn people that we have a three-revert rule; guide them to the three-revert rule policy; explain to them that the rule is not a game but meant to allow people to cool down and gain a little distance before proceeding; if someone has been warned and then reverts a fourth time, block them for 24 hours (if you ever have doubts, report the matter at the administrator's noticeboard—don't hesitate to draw on the advice or help of more experienced admins).